(57) A tire with a reinforcing belt structure comprising three plies. The inner and outer
plies 3, 11 each have a main body portion and a single folded end portion. The main
body portions 4, 13 of the inner and outer plies have substantially the same width.
The cords of the inner and outer plies 3,11 have the same orientation with respect
to the mid-circumferential centerplane of the tire. The folded end portion of each
of the inner and outer plies is disposed radially outwardly of its respective main
body portion. The inner and outer plies 3,11 are arranged in such a way that the unfolded
lateral end portion 16 of the main body ply of the radially outer ply 7 is enclosed
by the bight 6 of the radially inner ply 3. A middle unfolded ply 7 is interposed
between the main body portion of the inner and outer plies and comprises cords which
are oriented with respect to the mid-circumferential centerplane of the tire in the
direction opposite to the cords of the adjacent folded plies. The cords of the folded
plies 3,11 are made preferably of steel and the cords of the middle unfolded ply 7
are made preferably of a high modulus non-metallic material.
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